My 2 cents:
a) OP seems to be looking for a decent oscilloscope to buy it and forget about buying another one for years to come. I think it's a sensible approach, with just one caveat: I would spend a hundred bucks more to get a 4-channel one, quite probably one of the new/coming Rigol/Siglent -unless OP is sure he will never do any digital work. In that case a 2-channel one could be fine. But I find that probability is quite small as of today, so I would really go for a 4.channel device.
b) If budget is really tight, and considering there are other tools that come really handy, I would get the really cheap way and accept the shortcomings unavoidable on cheap oscilloscopes. That way there will be some remaining money to buy some of these other tools.
On the cheap toyscopes available today, I can't see too much value on 2-channel oscilloscopes unable to substract one channel from the other, and real performance is usually worse than the published specs. So:
b1) I would get the really cheap ZeeWeii DSO154Pro, just one channel and useable bandwidth just around 10 MHz, but enough to learn quite a bunch of things and able to remain useful to do field work in the future, say looking at his car waveforms, etc. Probably less than 50 bucks.
b2) a second cheap option would be to get an old 2-channel, 20-50 MHz, about 100 bucks, CRO oscilloscope which will usually be better than the specs and able to substract one channel from the other. OP is in the US and things there are much better than almost anywhere else when looking for a vintage oscilloscope. In the future, it will remain useful to work with PSUs, do analog work, etc.
Of couse any of the b*) options will have shortcomings: it's just a "toy" or is a "boat anchor" that a "newbie can't be sure about it really working good". And, going with a "b" option, it probably means OP will be getting an entry-level decent benchtop oscilloscope somewhere in the future.
But, if budget can't get stretched to about 400 bucks just for the oscilloscope, OP will have to accept some shortcoming -again unless he's sure he will never want to do any SPI work with ease.
TL;DR: get a 400 bucks, 4 channel new Rigol/siglent 12-bit device